It's okay, it's all about having fun :D
I won't judge people, you put effort in making your costume right.
In Vancouver we get like 3 anime convention usually every year. I haven't attend one yet :/
But if i do go, i would dress up as Catherine from the Catherine game.

I think those who cosplay are very cool, and if you can pull it off that's even more awesome. I've never done it, but I would love to try. I want to go as Detective Conan to a convention one day, but I don't think I'd be able to do it that well. :c

I've personally never done it, or had much interest in doing it, but that's not to say I have a negative opinion about it. Some people are able to pull off awesome looks that brings some characters to life, I just can't do that.